What are the three types of magma?
GeologyThere are three basic types of magma: basaltic, andesitic, and rhyolitic, each of which has a different mineral composition. All types of magma have a significant percentage of silicon dioxide. Basaltic magma is high in iron, magnesium, and calcium but low in potassium and sodium. What are 3 types of magma and what is their
What state has less volcanoes?
GeologyAlaska is home to 141 active volcanoes, the most of any US state.…What States Have Volcanoes? Rank US State Number of Active Volcanoes 1 Alaska 141 2 California 18 3 Oregon 17 4 Washington 7 What state has the most non active volcanoes? 1. Alaska. Alaska is home to the largest number of potentially active
What does twinning is winning mean?
GeologyLet’s talk about ‘twinning’. The urban dictionary has pinned down the term as simply, “A take on the popular term ‘winning,’ it refers to identical thoughts or behavior, as well as to brilliance.” In reality, ‘style twinning’ is one of the most potent moves two stars can partake in. What does twinning mean on social
What is made out of sedimentary rock?
Geology questionsCommon Sedimentary Rocks: Common sedimentary rocks include sandstone, limestone, and shale. These rocks often start as sediments carried in rivers and deposited in lakes and oceans. When buried, the sediments lose water and become cemented to form rock. Tuffaceous sandstones contain volcanic ash. What are sedimentary rocks used for? Uses of Sedimentary Rocks Sedimentary rocks
Where are Synclines found?
GeologySynclines are typically a downward fold (synform), termed a synformal syncline (i.e. a trough), but synclines that point upwards can be found when strata have been overturned and folded (an antiformal syncline). Where can you find syncline? def. Syncline: A fold in a sequence of rock layers in which the younger rock layers are found
Where are cinder cone volcanoes found in the world?
GeologyCinder cones are found in many parts of the world, including: Australia, Canada, Chile, France, Iceland, Italy, Japan, Mexico, New Zealand, Peru, the Philippines, Russia, Spain (Canary Islands), Turkey, and the United States. Where are cinder cone volcanoes mostly found in the world? Cinder cones are commonly found on the flanks of shield volcanoes, stratovolcanoes,
What is an anticline in geology?
GeologyAn anticline is a structural trap formed by the folding of rock strata into an arch-like shape. The rock layers in an anticlinal trap were originally laid down horizontally and then earth movement caused it to fold into an arch-like shape called an anticline. What does anticline mean in geology? An anticline is a fold
How did ammonites go extinct?
GeologyWhy did ammonites go extinct? At the end of the Cretaceous Period, an asteroid colliding with Earth brought on a global mass extinction. A lingering impact winter halted photosynthesis on land and in the oceans, which had a major impact on food availability and was devastating for ammonites. When did ammonites go extinct? about 66
What type of rock is serpentine found in?
Geologymetamorphic rockmetamorphic rock that forms at tectonic plate boundaries deep within the Earth. What kind of rock is serpentine? Serpentine is considered by geoscientists to be the metamorphosed remains of magnesium-rich igneous rocks, most commonly the rock peridotite, from the earth’s mantle. The mantle is a thick layer of rock just below the earth’s crust.
What are earthquakes caused by?
GeologyEarthquakes are the result of sudden movement along faults within the Earth. The movement releases stored-up ‘elastic strain’ energy in the form of seismic waves, which propagate through the Earth and cause the ground surface to shake. What is the main cause of earthquakes? Earthquakes are usually caused when underground rock suddenly breaks and there